1
TS EAMCET 2020 (Online) 14th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

$$ \text { Predict } A \text { and } B \text { in the following reaction sequence : } $$

$$ \mathrm{CH}_3-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{COOH} $$

$$ \xrightarrow[\text { Red phosphorus }]{\mathrm{Br}_2} A \xrightarrow{\mathrm{KOH} \text { (alc.) }} B$$

A

TS EAMCET 2020 (Online) 14th September Evening Shift Chemistry - Carboxylic Acids and Its Derivatives Question 1 English Option 1

B

TS EAMCET 2020 (Online) 14th September Evening Shift Chemistry - Carboxylic Acids and Its Derivatives Question 1 English Option 2

C

TS EAMCET 2020 (Online) 14th September Evening Shift Chemistry - Carboxylic Acids and Its Derivatives Question 1 English Option 3

D

TS EAMCET 2020 (Online) 14th September Evening Shift Chemistry - Carboxylic Acids and Its Derivatives Question 1 English Option 4

2
TS EAMCET 2020 (Online) 14th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

The major product formed by the reaction of benzylamine with nitrous acid is

A

phenol

B

benzaldehyde

C

chlorobenzene

D

benzyl alcohol

3
TS EAMCET 2020 (Online) 14th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

If $f: Z \rightarrow N$ is defined by

$$ f(n)=\left\{\begin{array}{cll} 2 n, & \text { if } & n>0 \\ 1, & \text { if } & n=0, \text { then } f \text { is } \\ -2 n-1, & \text { if } & n<0 \end{array}\right. $$

A

one-one but not onto

B

onto but not one-one

C

both one-one and onto

D

neither one-one nor onto

4
TS EAMCET 2020 (Online) 14th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

Domain of $\cos ^{-1}\left[\log _5\left(x^2+7 x+15\right)\right]$ is

A

The set of all real numbers

B

$(-\infty,-5] \cup[-2, \infty)$

C

$R-\{-5,-2\}$, where $R$ is the set of real numbers

D

$[-5,-2]$

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